560.28.03

kernel-open/nvidia/nv-host1x.c

@@ -0,0 +1,80 @@
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2020 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#define  __NO_VERSION__
+
+#include "os-interface.h"
+#include "nv-linux.h"
+
+#if defined(NV_LINUX_NVHOST_H_PRESENT) && defined(NV_LINUX_NVHOST_T194_H_PRESENT)
+#include <linux/nvhost.h>
+#include <linux/nvhost_t194.h>
+
+NV_STATUS nv_get_syncpoint_aperture
+(
+    NvU32 syncpointId,
+    NvU64 *physAddr,
+    NvU64 *limit,
+    NvU32 *offset
+)
+{
+    struct platform_device *host1x_pdev = NULL;
+    phys_addr_t base;
+    size_t size;
+
+#if NV_IS_EXPORT_SYMBOL_PRESENT_nvhost_get_default_device
+    host1x_pdev = nvhost_get_default_device();
+    if (host1x_pdev == NULL) 
+    {
+        return NV_ERR_INVALID_DEVICE;
+    }
+#endif
+
+#if NV_IS_EXPORT_SYMBOL_PRESENT_nvhost_syncpt_unit_interface_get_aperture && \
+    NV_IS_EXPORT_SYMBOL_PRESENT_nvhost_syncpt_unit_interface_get_byte_offset
+    nvhost_syncpt_unit_interface_get_aperture(
+        host1x_pdev, &base, &size);
+
+    *physAddr = base;
+    *limit = nvhost_syncpt_unit_interface_get_byte_offset(1);
+    *offset = nvhost_syncpt_unit_interface_get_byte_offset(syncpointId);
+#else
+    return NV_ERR_NOT_SUPPORTED;
+#endif
+
+     return NV_OK;
+}
+#else
+
+NV_STATUS nv_get_syncpoint_aperture
+(
+    NvU32 syncpointId,
+    NvU64 *physAddr,
+    NvU64 *limit,
+    NvU32 *offset
+)
+{
+    return NV_ERR_NOT_SUPPORTED;
+}
+#endif
+